Separable mold for brick-presses.



No. 795,784. PATENTED JULY 25, 1905.

M. J. WELLING.

SEPARABLE MOLD FOB. BRICK PRESSES.

APPLICATION FILED HOV. 28,1904.

in :5 00 w MATTHEW J. WELLING, OF CHICAGQ, ILLINOIS.

SEPARABLE MOLD FOR BRICK-PRESSES- Specification of Letters Patent.

Patented July 25. 1905.

Application filed November 28, 1904. Serial No. 234,614:-

To all whom it may concern:

Be it known that I, MATTHEW J. WELLING, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and usefulv an end view of such mold. Fig. 3 is alongitudinal central section through the mold. Fig. 4 is a detailsectional view on dotted line 4 l of Fig. 1, and Fig. 5 is a similarsectional View on dotted line 5 5 of Fig. 1.

In the construction of a mold embodying the features of this invention Iprovide two clamping side bars 1, identical in construction and havingin their adjacent faces coinciding openings 2 and channels 3. The endwalls of the openings 2 form inclined shoulders 4E, and the side bars 1are provided with coinciding openings 5 for receiving the threaded rods6, upon both ends of which rods nuts 7 are turned.

Clamping end pieces 8 are adapted to extend between the clamping sidebars l, the ends of said end pieces lying within the openings 2 of saidside bars, the outer corners of the end pieces 8 being chamfered at anangle corresponding with that of the inclined shoulders 4;. The clampingend members 8 have a longitudinal opening 9 for receiving thescrewthreaded rods 6, said opening being elongated transversely of saidend members.

The molds proper are made up of mold-facing bars 10, 10, and 11. thebars 10 10 for the sides of the molds. the bars 11 for the ends. Thesidefacing-bars 10 10 are provided at each of their ends with a tongue 12,adapted to lie within the channels 3 in the inner faces of the sideclamping bars 1, while the end fac- In use the facing-bars 10, 10, and11 for the molds proper are put in position between the sideclamping-bars 1 and the clamping end pieces 8. Screw -threaded rods 6are then placed within the openings 5 in said side clamping-bars and theopenings 9 of said end clamping members and nuts 7 turned upon thescrew-threaded portions of said rods. Tightening the nuts draws the sideclamping-bars 1 together and forces the end clamping-bars 8 toward oneanother. The inclination of the shoulders at is such that the inwardmovement of the end clamping-bars is substantially the same as that ofthe side clamping-bars. In order to provide for taking up wear upon'thefacing members 10, 10, and Hand for the reduction of the thickness ofsaid members by grinding, the facing-bars 10 at the ends of the set ofmolds are made somewhat thicker than the facing-bars 10 between themolds, said bars 10 being provided in various thicknesses. When theabrasive action of the material operated upon makes it necessary togrind off the facing-bars, the ends of the side facingbars 10 10* arealso ground off in order to retain a regular and uniform size of thebricks.

It is clear that the embodiment herein shown of this invention may bechanged in various Ways without departing from the spirit and scope ofsaid invention, wherefore I desire to have it understood that I do notwish to limit myself to the precise details herein shown and described.

I claim as my invention 1. In a separable mold, in combination, clampingside bars and end pieces having inclined surfaces on the one adapted toengage with corresponding surfaces on the other, said end pieces havinglongitudinal openings extending therethrough of elongated cross-section;screw-threaded rods extending loosely through said side bars and throughthe openings in said end pieces; nuts on said rods; and mold-facing barsadapted to be clamped between said side bars and end pieces.

2. In a separable mold, in combination, clamping side bars havingcoinciding openings in their inner faces, one wall of each of saidopenings being inclined; clamping end pieces having chamfered endsadapted to lie upon the inclined walls of said openings; side ing sidebars toward each other to force all of said members together.

MATTHEW J. WELLING.

Witnesses:

L. L. MILLER, GEORGE L. CHINDAHL.

